Outboard motor with four stroke engine

Details Outboard motor with four stroke engine Outboard motor with four stroke engine

1994-04-29

1995-08-22

Okonsky, David A.

Internal-combustion engines

Frame construction

Horizontal cylinder

123196W, F02F 700, B63H 2014

Patent

active

054430445

ABSTRACT:
Disclosed herein is an outboard motor comprising a steerable and tiltable propulsion unit including a lower unit including a vertically extending drive shaft housing, a drive shaft extending vertically in the drive shaft housing and located in a plane extending in a fore and aft direction, and a propeller shaft driven by the drive shaft and extending in the fore and aft plane, and a powerhead comprising a four stroke engine including a vertically extending crankshaft located forwardly of the drive shaft and in laterally spaced relation to the fore and aft plane, a cylinder extending horizontally and radially from the crankshaft and at an acute angle to the fore and aft plane, a camshaft extending generally vertically in the fore and aft plane and in vertical alignment with and in driving connection with the drive shaft, and a gear set drivingly connecting the crankshaft and the camshaft for rotatably driving the camshaft at a rotational speed which is one-half of the rotational speed of the crankshaft.

REFERENCES:
patent: 4173939 (1979-11-01), Strang
patent: 4588385 (1986-07-01), Suzuki et al.
patent: 4726799 (1988-02-01), Harada et al.
patent: 4781635 (1988-11-01), Kinouchi et al.
patent: 5036805 (1991-08-01), Yamamoto et al.
patent: 5049100 (1991-09-01), Yamamoto et al.
patent: 5383440 (1995-01-01), Koishikawa et al.

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